QuestionRead the description of a proportional relationship.
Zoe is thrilled to be cast as Juliet in her school's production of Romeo and Julier, but she has lot of lines to memorize! There is a proportional relationship between the number of days Zoe has been memorizing her lines, $x$, and the total number of lines she has memorized, $y$.
The equation that models this relationship is $y=5 x$. How many lines will Zoe have memorized after 3 days? Write your answer as a whole number or decimal. $\qquad$ lines